EP 0136179 A2 19850403 - Multiple data path CPU architecture.
Title (en)
Multiple data path CPU architecture.
Title (de)
Zentralprozessor-Architektur mit mehrfachem Datenweg.
Title (fr)
Architecture d'unité processeur central à voie de données multiple.
Publication
Application
Priority
US 53787783 A 19830929
Abstract (en)
The various functional units which comprise a central pro- cessing unit of a computer are organized so as to enable a main arithmetic logic unit and special function units including an auxilliary arithmetic logic unit to access data registers, literal constants, and data from a memory cache. A general purpose bus closely couples the functional units to the main data paths and allows the CPU sequencer to branch on numerous conditions which may be indicated via test lines. Parity from the functional units is sent a clock cycle later than results in order that the parity path does not affect machine cycle time. The architecture allows unused microcode options to be used to check for correct CPU operation by halting CPU operation on a miscompare of two buses.
IPC 1-7
IPC 8 full level
G06F 7/00 (2006.01); G06F 9/30 (2006.01); G06F 9/38 (2006.01)
CPC (source: EP KR US)
G06F 9/38 (2013.01 - KR); G06F 9/3885 (2013.01 - EP US); G06F 9/3897 (2013.01 - EP US); G06F 13/00 (2013.01 - KR)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0136179 A2 19850403; EP 0136179 A3 19861230; EP 0136179 B1 19901128; AT E58794 T1 19901215; AU 3359684 A 19850404; AU 574387 B2 19880707; BR 8404918 A 19850820; CA 1215783 A 19861223; DE 3483669 D1 19910110; DK 165202 B 19921019; DK 165202 C 19930315; DK 462584 A 19850330; DK 462584 D0 19840927; FI 843781 A0 19840926; FI 843781 L 19850330; FI 85428 B 19911231; FI 85428 C 19920410; HK 46191 A 19910621; IE 56554 B1 19910911; IE 842461 L 19850329; IL 73106 A0 19841231; IL 73106 A 19880429; IN 162545 B 19880611; JP H0752386 B2 19950605; JP S60167028 A 19850830; KR 850002906 A 19850520; KR 920004059 B1 19920523; MX 157907 A 19881220; NO 168497 B 19911118; NO 168497 C 19920226; NO 843891 L 19850401; NZ 209663 A 19890106; US 4800486 A 19890124; ZA 847524 B 19850626
DOCDB simple family (application)
EP 84306591 A 19840927; AT 84306591 T 19840927; AU 3359684 A 19840927; BR 8404918 A 19840928; CA 464281 A 19840928; DE 3483669 T 19840927; DK 462584 A 19840927; FI 843781 A 19840926; HK 46191 A 19910611; IE 246184 A 19840927; IL 7310684 A 19840926; IN 694CA1984 A 19840927; JP 20389484 A 19840928; KR 840005995 A 19840928; MX 20289784 A 19840928; NO 843891 A 19840928; NZ 20966384 A 19840924; US 53787783 A 19830929; ZA 847524 A 19840925